Don Hampton put me in touch with his graduate student Jason Ahrns. Jason is putting together the new Nikon all-sky camera at the SOC.
I set Jason up with an account, allsky@zachar, to push images into. He's pushing a file approximately every 10 seconds.
Had to add new packages to zachar: inotify-tools and ImageMagick.
A script fragment from http://stackoverflow.com/questions/7542430/inotify-and-bash gives us a lightweight process for checking for new files.